EL4331C Elantec Semiconductor, Inc. (acquired by Intersil), EL4331C Datasheet

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EL4331C

Manufacturer Part Number
EL4331C
Description
Triple 2:1 Mux-amp AV=1
Manufacturer
Elantec Semiconductor, Inc. (acquired by Intersil)
Datasheet

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© 1995 Elantec, Inc.
Features
Applications
Ordering Information
• 3 ns A-B switching
• 300 MHz bandwidth
• Power down mode
• TTL/CMOS compatible controls
• Fixed gain of 1
• 400V/µs slew rate
• RGB multiplexing
• Picture-in-picture
• Cable driving
• HDTV processing
• Switched gain amplifiers
• ADC input multiplexer
EL4331CS
Part No.
-45°C to +85°C
Temp. Range
16-Lead SOIC
Package
MDP0027
Outline#
EL4331C
Triple 2:1 Mux-Amp AV = 1
General Description
The EL4331C is a triple, very high speed, 2:1 Multiplexing Amplifier.
It is intended primarily for component video multiplexing, and is espe-
cially suited for pixel switching. The amplifiers have their gain set to
1, internally. All three amplifiers are switched simultaneously from
their A to B inputs by the TTL/CMOS compatible, common A/B con-
trol pin.
The EL4331C has a power down mode, in which the total supply cur-
rent drops to less than 1 mA. In this mode, each output will appear as
a high impedance.
The EL4331C runs from standard ±5V supplies, and is available in the
narrow 16-pin small outline package.
Connection Diagrams

Related parts for EL4331C

EL4331C Summary of contents

Page 1

... All three amplifiers are switched simultaneously from their inputs by the TTL/CMOS compatible, common A/B con- trol pin. The EL4331C has a power down mode, in which the total supply cur- rent drops to less than 1 mA. In this mode, each output will appear as a high impedance. ...

Page 2

... EL4331C Triple 2:1 Mux-Amp Absolute Maximum Ratings Any GND Any GND EE Continuous Output Current Any Input (except Input D Important Note: All parameters having Min/Max specifications are guaranteed. The Test Level column indicates the specific device testing actually performed during production and Quality inspection ...

Page 3

... Power Down Turn-On Time ON_PD T Power Down Turn-Off Time OFF_PD = 150 and Min Typ 300 400 400 150 1 3 EL4331C Triple 2:1 Mux-Amp Max Test Level Units V MHz V MHz V V/µ ...

Page 4

... EL4331C Triple 2:1 Mux-Amp Typical Performance Curves 3 dB Bandwidth Small Signal Transmit Response Switching from Ground to An Uncorrelated Sine Wave and Back Switching Glitch with edges Large Signal Transient Response Switching a Family of DC Levels to Ground and Back Switching Glitch with Edges ...

Page 5

... Switching a Family of DC Levels to a Sine Wave and BackV Output Power Down Turn-Off Response Frequency Response with 150 and 5 pF Load Triple 2:1 Mux-Amp Output Response In and Out of Power Down with a Family of DC Inputs Output Power Down Turn-On Response Frequency Response with 240 and 5 pF Load 5 EL4331C ...

Page 6

... EL4331C Triple 2:1 Mux-Amp Frequency Response with 150 and Various Values of Capacitive Load A-Input to B-Input Isolation Supply Current vs Power Down Voltage Frequency Response with 240 and Various Values of Capacitive Load Channel to Channel Isolation - Supply Voltage 6 ...

Page 7

... Slew Rate vs Supply Voltage Total Harmonic Distortion Output Voltage Swing vs Supply Voltage Triple 2:1 Mux-Amp Slew Rate vs Temperature Voltage Noise Spectral Density Maximum Power Dissipation 7 EL4331C ...

Page 8

... EL4331C Triple 2:1 Mux-Amp Applications Information Pin Descriptions A1, A2, A3 “A” inputs to amplifiers 1, 2 and 3 respectively B1, B2, B3 “B” inputs to amplifiers 1, 2 and 3 respectively GND1, GND2, These are the individual ground pins for each channel. GND3 OUT1, OUT2, Amplifier outputs. Note there is no short circuit OUT3 protection ...

Page 9

... When the monitor is switched off, or goes into its power-saving blanked mode, the EL4331 can be pow- ered down to further save power. The input impedance does not change appreciably between powered up and down modes, although the bias current does drop to near zero. 9 EL4331C ...

Page 10

... EL4331C Triple 2:1 Mux-Amp demonstration board with this circuit available from Elantec. Application Circuit #2 Figure 2 shows a circuit that has either a very wide band- width MHz low pass response. The EL4331’s “A” inputs are connected to the one frequency determin- ing set of components, while the “ ...

Page 11

... As seen in the photograph, this causes a glitch of about 200 ns duration. However, when the A/B select pin changes inputs, the glitches are much smaller, as shown in photograph B3. Photograph B4 shows the +2. EL4331C ...

Page 12

... EL4331C Triple 2:1 Mux-Amp -2.5V transition. This is another PD caused glitch, simi- lar to the step 4 to step 5 glitch, but with a much increased magnitude—which causes significantly more fighting between the output stages. Despite the glitches, if the PD switching can be done during signal blanking, and only A/B switching is used ...

Page 13

... EL4331C Triple 2:1 Mux-Amp General Disclaimer Specifications contained in this data sheet are in effect as of the publication date shown. Elantec, Inc. reserves the right to make changes in the cir- cuitry or specifications contained herein at any time without notice. Elantec, Inc. assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement ...

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